Unlock instant, AI-driven research and patent intelligence for your innovation.

Cage valve

A technology of valve plug and valve body, which is applied in the field of cage valves, can solve problems such as valve body enlargement, valve body, and valve mechanism complexity, and achieve the effects of reducing vibration, reliable sealing, and improving reliability

Inactive Publication Date: 2008-10-22
YAMATAKE HONEYWELL CO LTD
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In the valve device described in conventional Patent Document 1, since the valve body is provided with a dual-system flow path of the high-resistance flow path 120 and the low-resistance flow path 121, there are valve bodies and valve mechanisms (cages, plugs, etc.) Complicated, and the problem that the valve body is also enlarged

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cage valve
  • Cage valve
  • Cage valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0050] figure 1 It is a longitudinal cross-sectional view of main parts showing a state in which the valve device according to Embodiment 1 is substantially fully opened. In addition, FIG. 2-(1) is a cross-sectional view of a plug of the valve device and an enlarged view of part A, and FIG. 2-(2) is a cross-sectional view of a plug of a valve device as a comparative example and an enlarged view of part B. image 3 (1) and (2) are figures which show the dimension of a plug. Figure 4 -(1) is a diagram showing a cross-sectional view of a plug and a cage in a state where the degree of opening is 5%. Figure 4 -(2) means Figure 4 - (1) Diagram of enlarged view of part E. Figure 5-(1) is a cross-sectional view of the plug and cage in a state of 0% opening, and Figure 5-(2) is a cross-sectional view of the plug and cage in a state of 10% opening and an enlarged view of part C, Figure 5 -(3) is a cross-sectional view of the plug and the cage in a state where the degree of opening...

Embodiment approach 3

[0092] Fig. 9 (1) is a cross-sectional view of a plug as a valve device according to Embodiment 3 of the present application, Fig. 9 (2) is an enlarged view of part F of Fig. 9 (1), and Fig. 9 (3) is a view of Fig. 9 from below. (1) and FIG. 9(4) are side views of the plug of the third embodiment.

[0093] The difference from the valve device of Embodiment 1 above is only the shape of the valve plug, although the shape of the low-opening flow characteristic portion 432 of the valve plug 415 of Embodiment 3 and the shape of the low-opening flow characteristic portion 31 of Embodiment 1 It is different, but other parts such as the valve stem 18 and the cage 7 are provided completely the same as those of the valve device of the first embodiment.

[0094] As shown in FIGS. 9(1), (2), (3) and (4), the low-opening flow rate characteristic portion 432 of the valve device according to Embodiment 3 is provided at the lower end portion of the valve plug 415 and below the seat surface 41...

Embodiment approach 4

[0099] Fig. 10(1) is a cross-sectional view of a plug as a valve device according to Embodiment 4 of the present application, Fig. 10(2) is an enlarged view of part G of Fig. 10(1), and Fig. 10(3) is a view of Fig. 10 from below. (1) and FIG. 10(4) are side views of the plug according to the fourth embodiment.

[0100] The difference from the valve device of Embodiment 1 above is only the shape of the valve plug, although the shape of the low-opening flow characteristic portion 532 of the valve plug 515 of Embodiment 4 and the shape of the low-opening flow characteristic portion 31 of Embodiment 1 It is different, but other parts such as the valve stem 18 and the cage 7 are provided completely the same as those of the valve device of the first embodiment.

[0101] 10(1), (2), (3), and (4), the low-opening flow characteristic portion 532 of the valve device according to Embodiment 4 is provided at the lower end portion of the valve plug 515 and below the seat surface 519 .

[...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A cage valve having a cage (7) and a valve plug (15). The cage (7) is fixed inside one chamber partitioned by a partition wall (2) partitioning the inside of a valve body into the upstream side and the downstream side and has flow rate control windows (13) in its peripheral wall. The valve plug (15) slides in the cage (7) to open and close the flow rate control windows (13) of the cage (7). A characteristic section (31) for a flow rate at a low opening degree is provided in a lower end circumferential surface of the cage (7), and the characteristic section has a gap between itself and the cage inner wall. The cage valve is small sized and has excellent ability capable of coping with a wide flow rate range from high to low.

Description

technical field [0001] The invention relates to a cage valve with a cage and a valve plug. The cage has a flow control window on the peripheral wall; the valve plug moves up and down in the cage, and the flow of fluid is controlled by controlling the opening area of ​​the flow control window. Background technique [0002] The flow adjustment of the cage valve is carried out by changing the opening area of ​​a plurality of flow control windows arranged on the peripheral wall of the cage. As a mechanism for changing the flow rate control window, the following method is generally used, that is, a cylindrical or circular tubular valve plug is installed inside the cage, and the valve plug is reciprocated up and down by using an operator or the like. Change the opening area of ​​the flow control window. [0003] In the cage valve having such a mechanism, when the fluid pressure is significantly reduced or the flow rate is fast, cavitation may occur, and the performance, durabilit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16K3/24F16K47/02
CPCF16K47/08F16K3/246
Inventor 福室慎一加藤英高川合茂弘
Owner YAMATAKE HONEYWELL CO LTD